I can’t stop thinking about fucking my neighbor

Yes, this is serious, I’m not joking.

I’m a 20 year old guy and I recently moved to a new apartment complex. I met one of my neighbors, a guy in his 30’s, and we talked 4 times at most, yet somehow this dude has overtaken all of my thoughts and I can’t stop thinking about having sex with that man.

I’m not gay, or at least I wasn’t, I’ve never been attracted to a male before. Which is weird but not my main concern, I’m not homophobic or anything. My main concern is that I can’t stop thinking about it, it’s all of the time, it doesn’t stop even when I’m at work or watching something, it’s even in my dreams. I’ve been attracted to other people before and it doesn’t feel like this at all, it’s becoming tiring and annoying and I’m surprised my duck can still get up at this point. I also feel like an immense creep for obvious reasons, I’ve been avoiding the guy in case my newfound crippling attraction becomes a YOU situation or something, you never know.

I don’t know if that’s relevant but I have autism, so maybe he’s a new special interest or hyperfixation(?).